Locking system for a turbine side entry blade

Details Locking system for a turbine side entry blade Locking system for a turbine side entry blade

F - Mech Eng,Light,Heat,Weapons

01

D

170/81

F01D 5/32 (2006.01) F01D 5/30 (2006.01)

Patent

CA 1274182

ABSTRACT OF THE DISCLOSURE A locking system for attaching a circular array of side entry steam turbine blades to a rotor disc utiliz- ing a circumferential groove in the outer periphery of the disc and a notch in one side of a blade platform to form an opening for receiving a pin which prevents the blade from sliding in the side entry slots in the disc and the next blade installed on the rotor captures a pin in the preced- ing blade except the last blade assembled in the array or closing blade has a kerf in the platform which registers with the circumferential groove in the disc and a locking key fitting into the kerf and groove to hold the last blade in place and the locking key being captured in the kerf and groove by a strip of metal passing through a slit in the locking key and an opening formed in the platforms.

532832

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